Remember that SnowLeopard/Lion generates temporary files every time you connect your external drive. Run OptimUSB each time you eject.

When you delete a file from a external drive on SnowLeopard/Lion, it is moved to the trash, leaving a blind copy on the external drive. You could completely empty the trash, but you would lose any other files in the trash as well. That is why deleting items does not help you regain space. With OptimUSB, you can keep your external drive optimized and regain the actual disk space.

About Techtiplib - Hey, this blog belongs to me! I am the founder of TechTipLib and managing editor right now. And I love to hear what do you think about this article, leave comment below! Thank you so much...